Motor fuel



atented Sept. 25, 1923.

WALTER T. SCHREIBE B, OF BALTIMORE, MARYLAND, ASSIGNOR TO U. S.INDUSTBIAL ALCOHOL ('10., A CORPORATION OEWES'I VIRGINIA.

MOTOR FUEL.

' 11o Drawing.

To all whom it may concern:

Be it known that I, WALTER T. SCHREIBER, a citizen of the United States,residing at Baltimore, and State of Maryland, have invented a certainnew and" useful Improvement in Motor Fuel, of which the following is aspecification.

My invention relates particularly to fuels designed to be used inaeroplane motors, but is applicable for use in internal combustionmotors of all kinds usedin flying or other purposes.

The object of my invention is to provide a fuel which is especiallyadapted for use in aeroplanes,,although it is also applicable for use ininternal combustion engines in general.

It is necessary that fuels which are to be used in aeroplane motorsshall have great dependability, inasmuch as any uncertainty in theoperation of the aeroplane, by reason of variability in the haracter ofthe fuel or failure of the fuel to erform its intended work, may bringabout isastrous consequences.

For this reason, it is desirable to avoid usingin such fuel largeercentages of petroleum products, inasmuc as commercial petroleumproducts do not ordinarily have a constant composition, and are usuallycomprised of varying quantities of a number of diii'erent constituents.

. It is, thereformthe object of my invention to provide a motor fuelavoiding these disadvantages and taking intoaccount the circumstancesabove referred to.

Stills. further object of my invention is to provide fuels of theahovechara'cter by the use of ketones but especially higher ketones,that is to say, ketones other than acetone.

'vide a composition of such character that cenzol, if present, will notbe caused to crystallize out at ordinary atmospheric temperatures, asfor example, when an aeroplane operated thereby is at a very highaltitude. This is accomplished by the use of higher ketones, as withoutthe presence of such higher ketones the compositions would tend tosol'dizty in whole or in part at ordinary atmospheric temperatures.

Further objects of my invention will apfor Another object of myinvention is to pro- Application filed May 8, 1919. Serial No. 295,695.

6 t K. t ther 17% kerosene 7% cc 4: g e

Another example is 35 parts by volume of methyl-ethyl-ketone 25 alcohol17% kerosene 17% gasoline Another example is 35 parts by volume ofdiethyl ketone 25 alcohol 5 44 cg ether 17% kerosene 17 gasoline Anotherexample is 5 parts by volume of diethyl ketone v 35 benzol 25 alcohol17% kerosene 17% gasoline Another example is 10 parts by volgme ofmethyl-ethyl-ketone 3O henzol 20 alcohol 30 gasoline The abovecompositions may be varied to a considerable extent. For example, thekerosene and gasoline may be substituted by the same total quantity of asingle petroleum distillate, such for example as asoline or kerosene.The ether may be omitted. Also other alcohols may be used instead ofethyl alcohol.

lhis case contains matter claimed in application Serial No. 295,694,filed May 8, 1919 b \p the same inventor.

Whie I have described my invention abovein detail, I wish it to beunderstood that my changes may be made therein without departing fromthe spirit thereof.

4. A. fuel comprising a petroleum distillate, an. alcohol, a higherketone, and ether, the petroleum distillate being less than 50% byvolume, the ketone about 1} part by volume, and-the other about 1/20 byvolume. 15

In testimony that I claim the foregoing I have hereunto set my hand this1st day of May, 1919.

'WALTER T. SCHREIBER,

